Other attributes
Classification Type
Parent Classification
No article content yet.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
E21B 33/064
Blow-out preventers {, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers } specially adapted for underwater well heads
Find more entities like E21B 33/064
Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more.
